public class text {
    public static void main(String[] args) {
        MySingleList mySingleList=new MySingleList();
        mySingleList.creatlist();
        mySingleList.display();
        System.out.println("长度： "+mySingleList.size());
        System.out.println("是否包含数字： "+mySingleList.contains(12));
        mySingleList.addFirst(32);
        mySingleList.addFirst(67);
        mySingleList.display();
        mySingleList.addLast(9999);
        mySingleList.addLast(888888);
        mySingleList.display();
    }
}
